i have a 90 4 cyl now my question is the stock dash harness from the 4 cyl will that harness plug into the 8 cyl computer and all i have to change is the wiring from the computer to the firewall and from the firewall to the mass air ??????????????some one please help
See the "Useful Technical Thread Index" sticky at the top of the 5.0 Tech forum. It has a link to a 2.3 to 5.0 conversion tech note. What you need may be in that tech note.